State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, PR China.
State Key Laboratory of Oral Diseases, Sichuan University, Chengdu, PR China.
J Craniomaxillofac Surg. 2014 Jan;42(1):53-8. doi: 10.1016/j.jcms.2013.02.002. Epub 2013 May 18.
Superolateral dislocation of the mandibular condyle (SDMC) is rarely described. The best treatment for superolateral dislocation of the fractured mandibular condyle (SDMC) is debated. This study investigated selection of the timing and techniques used in treating these fractures.
A retrospective clinical study was conducted on clinical data from 10 SDMC patients. Maximum mouth opening and occlusal relationships were compared following treatment using different techniques.
The 10 patients were followed for 6-25 months. Patients who had dislocation for less than 1 week had condylar reduction and rigid internal fixation of the fractures. Mandibular sagittal split ramus osteotomy and articular reduction and fixation were performed in seven cases. Postoperative mouth opening and occlusal relationships were satisfactory in all patients with the exception of one case with mouth opening of only 27 mm.
For all patients with superolateral dislocation, our first approach was to reduce the bone stump through surgery. When the dislocated joint had become adherent to the surrounding tissues and ankylosis developed, mandibular sagittal split ramus osteotomy was performed with good results.
下颌骨髁突前外侧脱位（SDMC）很少见。对于骨折性下颌骨髁突前外侧脱位（SDMC）的最佳治疗方法存在争议。本研究探讨了治疗这些骨折时选择时机和技术的问题。
对 10 例 SDMC 患者的临床资料进行回顾性临床研究。采用不同技术治疗后，比较最大张口度和咬合关系。
10 例患者随访 6-25 个月。脱位时间少于 1 周的患者行髁突复位和骨折的坚强内固定。7 例患者行下颌骨矢状劈开截骨术和关节复位固定。除 1 例张口度仅 27mm 外，所有患者术后张口度和咬合关系均满意。
对于所有 SDMC 患者，我们的首要方法是通过手术复位骨残端。当脱位关节已与周围组织粘连并发生骨化性强直时，行下颌骨矢状劈开截骨术可获得良好的效果。
